package com.yzy.springcloud.service.impl;

import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import com.yzy.springcloud.service.PaymentService;

import cn.hutool.core.util.IdUtil;

import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentServiceImpl implements PaymentService {
	@Override
	public String paymentInfo_OK(Integer id) {
		return "线程池：" + Thread.currentThread().getName() + "   paymentInfo_OK,id：  " + id + "\t" + "哈哈哈";
	}

	@Override
	@HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler", commandProperties = {
			@HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "3000") // 3秒钟以内就是正常的业务逻辑
	})
	public String paymentInfo_TimeOut(Integer id) {
		int timeNumber = 5;
		try {
			TimeUnit.SECONDS.sleep(timeNumber);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return "线程池：" + Thread.currentThread().getName() + "   paymentInfo_TimeOut,id：  " + id + "\t" + "呜呜呜" + " 耗时(秒)"
				+ timeNumber;
	}

	// 兜底方法
	public String paymentInfo_TimeOutHandler(Integer id) {
		return "线程池：" + Thread.currentThread().getName() + "系统繁忙, 请稍候再试  ,id：  " + id + "\t" + "哭了哇呜";
	}

	// 服务熔断
	@HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback", commandProperties = {
			@HystrixProperty(name = "circuitBreaker.enabled", value = "true"), // 是否开启断路器
			@HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"), // 请求次数
			@HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"), // 时间范围
			@HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60"), // 失败率达到多少后跳闸
	})
	public String paymentCircuitBreaker(Integer id) {
		if (id < 0) {
			throw new RuntimeException("*****id 不能负数");
		}
		String serialNumber = IdUtil.simpleUUID();

		return Thread.currentThread().getName() + "\t" + "调用成功,流水号：" + serialNumber;
	}

	public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id) {
		return "id 不能负数，请稍候再试,(┬＿┬)/~~     id: " + id;
	}

}
